Yanmar 119620-22090 Piston Ring Set

The Yanmar 119620-22090 piston ring set is engineered for the 3TNA72 / 3D72 engine family with a nominal bore diameter of 72 mm. The set comprises three rings per cylinder: a top compression ring, a second compression ring, and an oil control ring assembly. Manufactured to OEM metallurgical standards using high-grade cast iron for the top ring, ductile iron or alloy steel for the second ring, and a composite steel oil ring with expander. Designed to maintain optimal cylinder sealing, oil control, and heat transfer under high thermal and mechanical loads typical in compact construction machinery and industrial power units. Direct replacement for Yanmar part number 119620-22090. Compatible with engine models Yanmar 3TNA72, 3TNA72E, 3TNA72L and Komatsu 3D72, 3D72N.